# Filing Detail

Form 10-Q - Quarterly report [Sections 13 or 15(d)]:
SEC Accession No. 0000357173-25-000076
Filing Date
2025-08-07
Accepted
2025-08-07 15:55:45
Documents
92
Period of Report
2025-06-30

Document Format Files

Seq | Description | Document | Type | Size
--- | --- | --- | --- | ---
1 | 10-Q | tmb-20250630x10q.htm iXBRL | 10-Q | 8096615
2 | EX-31.1 | tmb-20250630xex31d1.htm | EX-31.1 | 16970
3 | EX-31.2 | tmb-20250630xex31d2.htm | EX-31.2 | 17453
4 | EX-32.1 | tmb-20250630xex32d1.htm | EX-32.1 | 10007
5 | EX-32.2 | tmb-20250630xex32d2.htm | EX-32.2 | 8936
6 | GRAPHIC | tmb-20250630x10q001.jpg | GRAPHIC | 15958
| Complete submission text file | 0000357173-25-000076.txt |  | 30958353

Data Files

Seq | Description | Document | Type | Size
--- | --- | --- | --- | ---
7 | EX-101.SCH | tmb-20250630.xsd | EX-101.SCH | 92534
8 | EX-101.CAL | tmb-20250630_cal.xml | EX-101.CAL | 106667
9 | EX-101.DEF | tmb-20250630_def.xml | EX-101.DEF | 442434
10 | EX-101.LAB | tmb-20250630_lab.xml | EX-101.LAB | 834593
11 | EX-101.PRE | tmb-20250630_pre.xml | EX-101.PRE | 626093
95 | EXTRACTED XBRL INSTANCE DOCUMENT | tmb-20250630x10q_htm.xml | XML | 9385051

Mailing Address 37 SOUTH RIVER STREET AURORA IL 60507
Business Address 37 S RIVER ST AURORA IL 60507 6308920202
OLD SECOND BANCORP INC (Filer) CIK: 0000357173 (see all company filings)

EIN.: 363143493 | State of Incorp.: DE | Fiscal Year End: 1231
Type: 10-Q | Act: 34 | File No.: 000-10537 | Film No.: 251193693
SIC: 6022 State Commercial Banks
(CF Office: 02 Finance)